... М104 < М105 > М106 ...

Elliptical galaxy M105

Elliptical galaxy M105 is in the constellation Leo (Leo).

Equatorial coordinates (epoch J2000):
Ra (α):10^h47.8^m, Dec (δ):+12° 35'

Visual magnitude: 9,3^m
Distance from the galaxy M105 to the Sun is 37,9*10⁶ light years
Angular size: 5'×5'
Class: E1
External dimensions the galaxy M105 are about 55000 light years.
Estimated weight the galaxy: 100x10⁹ suns
The mass of the central object (black hole): 200x10⁶ suns

Discoverer: Pierre François André Méchain, 24.03.1781 year.

The designation M105 in other catalogs: NGC 3379

Optimum magnification for a telescope with observations of M105, depending on the aperture of the telescope (D), is about D/6-D/3. Higher magnifications of course add details, but lead to a strong drop in the brightness of the image, making it difficult to observe.

The best month for observing M105 is April. At this time, the object is at midnight near its highest point in the sky, that is, it is less affected by light from the lanterns and atmospheric distortions.

Мessier 104

Мessier 106

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